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參數資料
| 型號： | MR80C154-12 |
| 英文描述： | CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| 中文描述： | 的CMOS 0至36 MHz的單芯片8位微控制器 |
| 文件頁數： | 13/24頁 |
| 文件大?。?/td> | 354K |
| 代理商： | MR80C154-12 |
Rev.F (14 Jan. 97)
13
MATRA MHS
TEMIC offers 83C154 with the encrypted secret ROM
option to secure the ROM code contained in the 83C154
microcontrollers.
The clear reading of the program contained in the ROM
is made impossible due to an encryption through several
random keys implemented during the manufacturing
process.
The keys used to do such encryption are selected
randomwise and are definitely different from one
microcontroller to another.
This encryption is activated during the following phases :
–
Everytime a byte is addressed during a verify of the
ROM content, a byte of the encryption array is
selected.
–
MOVC instructions executed from external program
memory are disabled when fetching code bytes from
internal memory.
–
EA is sampled and latched on reset, thus all state
modification are disabled.
For further information please refer to the application
note (ANM053) available upon request.
TAG” on the microcontroller chip.
The Secret Tag option is available on both ROMless and
masked microcontrollers.
TEMIC offers special 64-bit identifier called “SECRET
microcontroller for identification of a specific
equipment. A unique number per device is implemented
in the chip during manufacturing process. The serial
number is a 64-bit binary value which is contained and
addressable in the Special Function Registers (SFR) area.
This Secret Tag option can be read-out by a software
routine and thus enables the user to do an individual
identity check per device. This routine is implemented
inside the microcontroller ROM memory in case of
masked version which can be kept secret (and then the
value of the Secret Tag also) by using a ROM Encryption.
For further information, please refer to the application
note (ANM031) available upon request.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MR80C154-16 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| MR80C154-20 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| MR80C154-25 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| MR80C154-30 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
| MR80C154-36 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller |
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